Lamp.



G. M. FIERO.

LAMP. APPLICATION FILED AUG.9. 191s.

Patented Feb. 6,1917,

Georqa A4. 7767?.

z/mmfmzi 96 W GEORGE M. FIERO, OF PITTSBURGH, PENNSYLVANIA.

LAMP.

Application filed August 9, 1916.

To all whom it may concern:

Be it known that I, Gnoncn M. FmRo, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Lamps, of which the following is a specification.

This invention relates to a signal lamp and has for its primary object to so construct a lantern that the same will be capable of giving a variety of signals.

An object of the invention is to construct a lantern capable of performing the duties of two well known lanterns now on the market.

Another object of the invention is to so arrange an auxiliary colored globe that the same may be moved to a position to color the light rays passing fromthe burner tip through the main globe.

Besides the above my invention is distinguished in the novel manner of associating the auxiliary globe and the hood so that the latter is capable of protecting the for mer.

With these and other objects in view the invention will be better understood from the following detail description taken in connection with the accompanying drawing wherein Figure l, is a side elevation of my improved form of lantern.

Fig. 2, is a' vertical sectional view thereof.

Fig. 3, is a diagrammatic view of one form of auxiliary globe.

Fig. 4, is a detail view of a modification.

Referring to the drawing it will be seen that the major portion of the lamp A, is of a well known construction used on railways which consists of a base 1, a burner tip 2, a globe 3, and a hood 4, supported above the base 1, by the rods 5.

My invention consists in arranging an auxiliary globe 6, concentrically of the burner tip 2 and within the main globe 3. This globe 6. is colored in any suitable manner or may be formed as shown in Fig. 3, with the major portion of its surface colored with the exception of a clear space 7. The globe 6 is of such shape as to be slidably mounted within the hood 4 and at this point Specification of Letters Patent.

Patented Feb. 6, 1917. Serial No. 113,966.

I wish to call attention to the fact that the fit between the hood and the globe will be such that the globe 6, will be prevented from rattling while at the same time take care of expansion and contraction. In this particular instance I have shown a rod 8, passing through the globe but I wish it to be understood that the rod may be made of two parts each part secured to one side of the globe so as to prevent the crossing of a rod across the hood. i

This rod has one end formed into a head 9 while the other end has threaded thereon a nut 10. Slidably receiving the end portions of the rod are slots 11 and 12 arranged at diametrical points of the hood. Each slot extends in a vertical direction and the lower end as well as the upper end thereof extends laterally as indicated at 13. From this arrangement it will be seen that when the rod is moved into alateral extension and the nut 10 tightened, the globe will be held against movement.

Should it be found advantageous in practice I may provide an auxiliary flue 14L having slots 15 for accommodating movement of the rod 8. In Fig. i the rod is so associated with the slot 11 that the clamping action of the nut 10 may be dispensed with. To accomplish this action the slot 11 at each end extends on a curve as illustrated at 16 and this curved portion terminates in a recess 17 that receives the rod 8. In this particular instance the rod 8 must be resiliently bent out of its original position to spring into the recess 17 It is to be understood that the structural embodiment of the invention as a whole with its various features as shown are merely illustrative and not restrictive as I am well aware that many of the details of construction may be varied without departing from the spirit of the invention.

I therefore do not desire to be limited in these particulars Or in any other except as set forth in the appended claim. -v

What I claim is A signal lamp comprising a base, a main globe supported by the base, a hood supported above the base, said hood being formed with a pair of vertically extending slots each having a lateral extension at its top and bottom ends, the extension at the bottom being formed with inclined Walls, an auxiliary globe arranged Within the main globe and slidably mounted in said hood, a rod passing; across said auxiliary globe and mounted in the Wall thereof at diametrical points and a nut mounted on each end of the rod and adapted to bind against the hood. 10

In testimony whereof I af'fix my signature.

GEORGE M. FIERO.

Copies of this patent may be obtained for five cents each, by addressing the Gommis f' oner of Patents, Washington, D. C. 

